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A private branch exchange (PBX) is a telephone exchange that serves a particular business or office, as opposed to one that a common carrier or telephone company operates for many businesses or for the general public.
Biometrics (or biometric authentication) consists of methods for uniquely recognizing humans based upon one or more intrinsic physical or behavioral traits. Intrinsic physical traits are related to the shape of the body.
Burglar (or intrusion), alarms are systems designed to detect unauthorized entry into a building or area. They consist of an array of sensors, a control panel and alerting system, and interconnections.
Network security involves the authorization of access to data in a network, which is controlled by the network administrator. Users choose or are assigned an ID and password or other authenticating information that allows them access to information and programs within their authority. Network security starts with authenticating the user, commonly with a username and a password.
Renewable energy is energy which comes from natural resources such as sunlight, wind, rain, tides, and geothermal heat, which are renewable (naturally replenished). Solar energy is the energy derived from the sun through the form of solar radiation.
A digital video recorder (DVR) or personal video recorder (PVR) is a consumer electronics device or application software that records video in a digital format to a disk drive, USB flash drive, SD memory card or other local or networked mass storage device.
A wireless local area network (WLAN) links two or more devices using some wireless distribution method (typically spread-spectrum or OFDM radio), and usually providing a connection through an access point to the wider internet. This gives users the mobility to move around within a local coverage area and still be connected to the network. Most modern WLANs are based on IEEE 802.11 standards, marketed under the Wi-Fi brand name.
SWSI offers cost effective solutions to security problems for grocery stores, gas stations, banks, hospitals, schools and others. From pilferages inside the warehouse to shoplifting inside a 24-hr convenience store, our satisfied customers have already enjoyed the return of their investments on our offered solutions in Electronic Security System. 
Following years, with the proliferation of broadband internet, Digital CCTV has become a "big name" in the security market due to its "remote monitoring, control and recording" features.
